Dump-car.



J. D. METTLER.

DUMP GAR. l APPLICATION FILED JULY 14, 1913.4

i... ,A l# 1.. ,m NNN J. D.- METTLER.

DUMP GAB. APPLIOATIQN FILED JULY 121, 191s.

Patented Apr. 7, 1914 l 3 SHEETS-SHEET 2.

WITNESSES ATTORNEYS l. D. MBTTLER.

DUMP UAR. APPLIOATION'MLED JULY 14, 1913.

Patented Apr. 7, 1914 @SHEETS-SHEET 3.

,Anon/vers JOHN DANIEL METTLER, OF SNYDERTOWN, PENNSYLVANIA.

DUMr-GAR.

Loaaeaa.

Specication of Letters Patent.

Patented Apr. '7, 1914i.

Application filed July 14, 1913;. 'serial No. 778,941.Y

My invention relates to improvements in dump cars, more especially n those designed to be used for haulingv and dumping coal, and it consist-s in the combinations, constructions and arrangements herein described and claimed.

An object of my invention is to provide a car of the type described having hinged bottom portions which may be easily moved to effect the dumping' of the contents of the car, and which may be readily secured to hold the load wit-hout any danger of dumping the same in transit.

A further object of my invention is to provide a device having means for draining water from the load and at the same time preventing leakage of portions of the material which is being transported.

A further object of my invention is to provide a device which dispenses with ratchets or the use 'of wrenches for operating the doors, thereby obviating the danger of injury from a liying wrench or other tool when the doors are operated.

A further object of my invention is to provide a device of the type described in which the doors may be operated from either side of thecar.

@ther objects and advantages will appear in the following specification and the novel features of the device will be particularly 4o pointed out in the appended claims. v My invention is illustrated in the accompanying drawings forming part of this application in which-'- Figure l is aplan view of the device,

Fig. 2 is a section along the line 2 2 of Fig. l looking in the' directionof the arrows, Fig. 3 is a section along the line 3-3 of Fig. l looking in the direction of the arrows, Fig. i is a perspective view of one 50, of the movable doors, Fig. 5 is 'a section along the line 5--5 of Fig. 3. Fig. 6 is a side view of one of the operating links, Fig. 'i' is a perspective view of a retaining yoke, and Fig. 8 is a section on the line 8-8 of Fig. l llooking in the direction of the arrow.

In carrying out m invention4 l provide a frame consisting o the longitudinal side members l and 1,.the parallel longitudinal members 2 and 2 disposed near the center of the device and the cross members 3 and 3. As will be seen from Fig. 1 the frame lis divided bythe cross members 3 and 3 into four divisions corresponding to four compartments. Secured to the cross members 3 and 3 are. triangular shaped end plates 4 and 4 respectively. A bottom plate is provided for each compartment such as those shown at 5 and 5 having en'dtlanges 5X arranged to extend outside of and secured to the end members 4 or 4). These bottom plates are secured to the longitudinal `members 2 or 2 by means of brace members (5 and 6 respectively. These brace members serve the double purpose of `securing means and also o f strengthening members for` the bottom plates.

Referring now to Fig. 1 it will be seen that I have provided the longitudinal rods 7 and 7 which extend through the end members et and 4: see Fig. 3) and which are also supported at intervals by L-shaped brackets 8 and S. These rods form pivot members for the doors. The latter are preferably of the shape shown in Fig. 4. A description of one of the doors will sutlice since they are all alike.

Referring to Fig. 4 it will be seen that l have provided longitudinal members 9a and 91. these members being disposed in angular relation and being integral to form a body portion having a substantially V- shaped cross section, the member 9b being greater in width than the member 9, Integral end portions 9C are provided. VThe longitudinal members 9a and 9b are strengthenedby transverse brace members 9d, similar to the brace members 6 and 6. Extendinglongitudinally of the device where the bend in the V occurs is a slot 9e4 which permits the drainage of the contents of the compartment. On the outer side of each door is a V-shaped trough 10 which is secured to the door and which has a portion spaced from the door so as to carry off the water which has passed through the slot 9e. Secured to the member 9b is a series of loops 9f by means of which the door is pivotall suspended from the rod 7 (see Fig. 2). n 'the under side of each dooriportion 9c is a rod 9g which extends longitudinally of the door and to each end of which is secured an operating arm like that shown in Fig. 6. As will be seen from Figs. 1 and 6, the rod 9g is providedv with an eye through which the threaded end 11a of the operating arm 11 extends. Nuts 11b are provided for adjusting the position of the Sarm 11 with respect to the rod 9g. The rod or arm 11 is provided with a bend 11c whose purpose will be explained later. It is also provided at one en d with a slot 11d.

Referring now to Figs. 1 and 8 I have shown two longitudinally extending rock shafts 12 and 12 disposed underneath the doors. These rock shafts are rotatably supported by means of enlarged cylindrical bearing portions 12X or in any other suitable manner in end plates 13 which have upwardly extending central portions 13a Secured to the central longitudinal frame members 2 and 2 (see Fig. 8). The rock shafts 12 and 12 have secured to them just outside the ends of the compartments, arms 14 which o are pivotally connected to the arms or lin-ks 11 by means of bolts `or pins 15 which pass through the slots 11d (see Fig. 6). f

Referring again to Figs. 1 and 3 it will be seen that I have provided downwardly extending brackets 16 which are secured to the side members 1 and 1 of the frame, and

upon which is rotatably mounted a shaft 17 extending transversely of the device. Hand wheels 18 are secured to the ends of the shaft 17. The center of the shaft 17 is from the central frame members 2 and 2 by means of a yoke 19. The shaft 17 bears worms 20 and 20 arranged tov engage gears 21 and 21 mounted upon the rock shafts 12 and 12 respectively. In order to hold the worms in mesh with the gears -I rovide a yoke like thatshown in Fig. 7. T is yoke has a bodyportion 22 having an opening 22a to receive the shaft 17 and being provided with laterally extending portions 22b having alined openings 22c to receive the cylindrical bear'- ing members 12y of the rock shafts 12 and 12 respectively. This insuresthe engage- 'I ment of the worms with their respective gears. lThe .sides 24 of the car attach directly to the outer frame members 1 and 1, as shown in Figs. 2 and 3.

From the foregoing description of the -variousparts of the device the operationl thereof may be readily understood.

The compartments which are closed by the V-shaped doors are designed to vbe loaded with coal or any other suitable material.

The provision of the slots 9e provides means for draining the compartments `of any water which mayV collectl therein, this Water passing through the slots 9e and being carried away by the troughs 10. At the same timev the provision of the troughs prevents escape of material or leakage of the material. When the car is loaded the position of the mechanism for holding the doors in their closed position is that shown in full lines in Figs. 2 and 3. It will be noted that in this position the bent portionsgllc of the links or arms 11 lare in such a position as to take over the rock shafts 12 and 12. This holds'the doorsftight against the stationary portions 5 and 5 forming part of the bottom of the compartment. Now when it is desired` to dump the car one of the hand wheels ,18 on either side of the car is turned. This, through the medium of the shaft 17, worms 2O and 20, and gears 2 1 and 21', will cause the rotation of the rock shafts 12 and 12 in opposite directions, since one of the 'worms'is a right hand screw and the other is a left hand screw. This will cause the rotation of the arms 1 4 so as to cause the links' orv arms 11 to Lmove from the full line position shown in Fig. 2 to the dotted line position, vthus forcing open the doors into the position indicated in dotted lines 'in Fig. 2 and permitting the contents of the car to be dumped. In order to close the doors again the hand wheels 18 are rotated in the opposite direction. The purpose of the slots 11d in the links or arms 11 is to permit the bent portions of the rods 11 to be brouo'ht down v into engagement with the rock shaft 12. It will be noted thatqas the rock arms 14 are turned the pins 15 will be moved from one end of the slot to the other. This movement permits of the turning of tlie hand Wheels 18 so as to bringthe doors rmly against the stationary bottom portion of the compartments thus preventing any leakage and holding the doors securely in place.

It will be noted'that the doors are so formed that they in close the end members and the stationary portion 5 of the bottom of the compartment. The compartments are thereby made proof against leakage or waste. The provision of the worm and gear not only'provides great power for closing and opening the doors, but acts -as a positive locking member for these doors since it 1s impossible to open them by pressure on the inside of the compartment. The only means to open them is to turn the hand wheels 18.. The position of the links or arms 11 with respect to the doors vmay be adjusted'by means ofthe nuts 11b so that the doors may be brought into close cona tact with the stationary bottom members 5, thereby insuring the proper closing of the doors. .Thus when the member 11 is thrown to the closed position if the door should not be quite shut the nuts 11? may be tightened so' as to bring the door in close contact with Vr-shaft, a 'worm carried by said rotatable the stationary bottom members 5. It is obvious that when this adjustment is once I l made the door will be securely closed each time the member 11 is operated. If at any time, tlirough strain o-r otherwise, there 'should be any play between the doorand the bottom-member 5, this play may be again taken up by adjusting the nut.

The frame composed of the members 1, 2,

v3 and l', 2, and 3 may be supported upon any suitable form of truck.

`While I have ,illustrated the car as being composed of four compartments having doors operated "simultaneously by ahand wheel on veither side of theV car it will be understood that more or less compartments v may be provided than those shown without departing from the spirit and the 4scope of the invention.

f One feature to which I desire to call par ticular attention is the fact that whenl the doors are closed by means of the links or arms l1 the latter are brought to rest upon the rock shafts 12. Thus the weight ofthe door is supported to a large extent bythese rock shafts which' are securely fastened in the frame. There is thereforelittle danger of the door giving way under-the weight of the load above it.

Iclaim: i y

1. In a dump' car, a frame, a cmpartment therein provided with stationary ends of triangular shape, a stationary -bottom member secured to said frame and to said ends, a door of -Vshaped cross section arranged to4 swing into -engagement with theunder side of said'stationary section,said

- doorhaving end langes'arrangedl to inclose said end: sections, and means for operating said door, said last named means comprising an arm ivotally connected with saidlink, a rock s aft, a rock arm carried by Said rock shaft and having'a pivotalv connection with said link, and means for rotating said rock arm.

2. In a dump car, a frame, a c'ompart` I f ment thereinprovided with stationary ends of triangularfsha'pe, -afstationary bottom member secured to said frame and to said ends, a-doorlof V-shaped cross section ar- 1" ranged to swing into Ven'gagementl-with the under side of said stationary section, said doorhaving endV anges arranged ,to Vinclose said end sections, -means for operatprising anarm pivotally connected with said link,'a rock shaft',k a' rock armcarried by said rock shaft and having a pivotal -Aco'nnection with said link, means for rotating said` rockarm, including a rotatable shaft, and a'v ear carried by said rockshaft ari-ang tobe engaged by said Worm. i Blina), ump car,

a frame, a compartment -therein provided with 'stationary ends of triangular shape, a stationary bottom membersecured to said frame and to lsaid ends,

' a door of V-shaped -cross section arranged to of said compartments having stationary end' members of triangular shape, stationary lbottom members secured 'to` said end mem- -bers and to said frame','a -hingeddoor for each compartment, said hinged door having a V- shaped cross sect-ion, means for bringing all of said doors into engagement with their respective stationar bottom members and' locking'them in their closed positions, said means comprising a pair of parallel rock shafts, links pivotally connected with each of said doors, rock arms carried by said rock shafts and having pivotal con-4 nection with each of said linksand means for rotating said rock shafts simultaneously -in opposite directions.

5. Ina dump car,-,a frame, a plurality of compartments carried by said frame, each of said compartments having stationary end members of triangular shape, stationary bottom -members secured to said end. mem- -bers'and to --said frame, a hinged door for .each compartment, said hinged door having '.a Vshaped vcross section, means for bringing all of said doors `into engagement with their respective stationary bottom members and locking them in their closed said means comprising a -pair of parallel rock shafts, linkspivotally -connected-with each of 4said doors, rock arms carried by said rock shafts and tion with. each'of said linka-means for rotating said `rock shafts simultaneously in. opposite directions, said last named means' vcomprising a rotatable4 shaft arranged'. to extend transverselyoisaid rock' shafts, a gear Von each of said rock shafts, a right hand4 screw on saidfrotatable shaft arranged to engage one of said ears, and a left hand screw on the rotatab e' shaft engage the other of :said gears.

6. 'In al dump-car, a frame, a compartment carried thereby having lstationarywd members, a stationary bottom member secured positions,`

arranged to i to said end members, a swinging door arq.

ranged to engage said -stationary bottom member, said door being'ofV-shaped cross,

' section' and constitutinlspa'rt Of the. compartm'ent, a'r'ock shaft posed nde'rneath said door, a. rockfarm for said rock shaft, and' a link pivotally connected withsid door and having a pivotal eonnection with said rock arm, said linkrhaving a. bent. portion arnanged te take over and rest 4upon said rock shaft thereb i the 'we' `ht* of the door onthe and .legmck Shlfft. Y

JOHN DANIEI; LmTTLER. i Witnesses: A Y

l APBAHAM l.. lr i ,3-

JOHN Hoovlin.4 

